Shimano Ultegra BBR60 Hollowtech II English Bottom Bracket. Shimano Ultegra BB72 BBR60 Hollowtech II Bottom Brackets
- TECH SPECS
| Bottom Bracket Shell I.D. | 1.37 |
| BB/Frame Interface | English |
| BB Shell Width (mm) | 68 |
| Weight | 77 |
| Spindle Interface Type | Shimano Hollowtech II |
| Defined Color | Black |